Residential and Commercial Construction Other Activities - Design and construction of wastewater treatment facilities, Hydraulic Engineering Construction, Water-Supply Construction, Sewage Construction, Industrial and Heavy Civil Construction Other Activities - Design and construction of wastewater treatment facilities, Prefabricated Construction, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Pumping Station Construction, Water Treatment, Other - Water Supply / Sewage / Natural Gas Supply - Design and construction of wastewater treatment facilities / Water Supply / Outdoor Water Treatment

Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 04.04. Residential / Commercial and Industrial Buildings, 04.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), 04.06. HVAC / Gas Supply, 04.07. Hydraulic Structures, 04.08. Water Supply and Drainage / Melioration Systems, 04.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), 04.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers)

Highway Construction

Commercial Building Renovation / Finishing, Residential Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing